Oil supply device for vehicle

Abstract

An oil supply device for a vehicle includes an oil pump driven by a rotation of an internal combustion engine, a hydraulic actuator to which oil is supplied from the oil pump, an engine lubricating system to which the oil is supplied from the oil pump, an oil supply adjusting valve adjusting a supply condition of the oil from the oil pump to the hydraulic actuator and the engine lubricating system, a first oil supply passage supplying the oil from the oil pump to the hydraulic actuator, and a second oil supply passage supplying the oil from the oil pump to the engine lubricating system, wherein the oil supply adjusting valve consistently distributes the oil to the first oil supply passage and the second oil supply passage.

The invention claimed is: 
     
       1. An oil supply device for a vehicle, comprising:
 an oil pump driven by a rotation of an internal combustion engine; 
 a hydraulic actuator to which oil is supplied from the oil pump; 
 an engine lubricating system to which the oil is supplied from the oil pump; 
 an oil supply adjusting valve adjusting a supply condition of the oil from the oil pump to the hydraulic actuator and the engine lubricating system; 
 a first oil supply passage supplying the oil from the oil pump to the hydraulic actuator; and 
 a second oil supply passage supplying the oil from the oil pump to the engine lubricating system, 
 wherein the oil supply adjusting valve consistently distributes the oil to the first oil supply passage and the second oil supply passage. 
 
     
     
       2. The oil supply device according to  claim 1 , wherein the oil supply adjusting valve includes an oil flow control portion, a variable valve sliding within the oil flow control portion and varying the supply condition of the oil to the hydraulic actuator and the engine lubricating system, and a pressure portion sliding the variable valve toward the oil flow control portion, the oil flow control portion including a first oil supply passage portion connected to the first oil supply passage and a second oil supply passage portion connected to the second oil supply passage. 
     
     
       3. The oil supply device according to  claim 2 , wherein the oil flow control portion includes a third oil supply passage portion consistently distributing the oil relative to the second oil supply passage and flowing the oil to the second oil supply passage at a flow rate that is smaller than a flow rate of the oil flowing from the second oil supply passage portion to the second oil supply passage. 
     
     
       4. The oil supply device according to  claim 2 , wherein the oil flow control portion is configured so that the second oil supply passage portion is provided closer to the variable valve than the first oil supply passage portion, the oil flow control portion including a connecting portion connecting to the third oil supply passage portion and configured to have a cross-sectional area of a flow passage decreasing from the second oil supply passage portion to the third oil supply passage portion. 
     
     
       5. The oil supply device according to  claim 2 , wherein the variable valve includes a spool having a hole, a biasing member biasing the spool toward the oil flow control portion, and a retainer arranged in a condition where the biasing member is attached between the spool and the retainer, and the oil flows through the hole between the spool and the retainer. 
     
     
       6. The oil supply device according to  claim 3 , wherein the variable valve includes a spool having a hole, a biasing member biasing the spool toward the oil flow control portion, and a retainer arranged in a condition where the biasing member is attached between the spool and the retainer, and the oil flows through the hole between the spool and the retainer. 
     
     
       7. The oil supply device according to  claim 4 , wherein the variable valve includes a spool having a hole, a biasing member biasing the spool toward the oil flow control portion, and a retainer arranged in a condition where the biasing member is attached between the spool and the retainer, and the oil flows through the hole between the spool and the retainer. 
     
     
       8. The oil supply device according to  claim 5 , wherein a difference between areas of first and second pressure receiving surfaces of the spool is smaller than a difference between areas of first and second pressure receiving surfaces of the retainer, the first pressure receiving surface of the spool being positioned to face the oil flow control portion, the second pressure receiving surface of the spool being positioned to face the biasing member, the first pressure receiving surface of the retainer being positioned to face the pressure portion, the second pressure receiving surface of the retainer being positioned to face the biasing member. 
     
     
       9. The oil supply device according to  claim 2 , wherein when the internal combustion engine is not in operation, the variable valve is located in a position in which the supply of the oil from the oil pump to the engine lubricating system is not limited. 
     
     
       10. The oil supply device according to  claim 3 , wherein when the internal combustion engine is not in operation, the variable valve is located in a position in which the supply of the oil from the oil pump to the engine lubricating system is not limited. 
     
     
       11. The oil supply device according to  claim 4 , wherein when the internal combustion engine is not in operation, the variable valve is located in a position in which the supply of the oil from the oil pump to the engine lubricating system is not limited. 
     
     
       12. The oil supply device according to  claim 2 , wherein when the internal combustion engine is not in operation, the variable valve is located by gravity in a position in which the supply of the oil from the oil pump to the engine lubricating system is not limited. 
     
     
       13. The oil supply device according to  claim 3 , wherein when the internal combustion engine is not in operation, the variable valve is located by gravity in a position in which the supply of the oil from the oil pump to the engine lubricating system is not limited. 
     
     
       14. The oil supply device according to  claim 4 , wherein when the internal combustion engine is not in operation, the variable valve is located by gravity in a position in which the supply of the oil from the oil pump to the engine lubricating system is not limited. 
     
     
       15. The oil supply device according to  claim 3 , wherein the third oil supply passage portion is in an opposite direction from the second oil passage portion relative to the first oil supply passage portion. 
     
     
       16. The oil supply device according to  claim 15 , wherein the third oil supply passage portion is formed away from the second oil supply passage portion. 
     
     
       17. The oil supply device according to  claim 3 , wherein the third oil supply passage portion is provided at the variable valve. 
     
     
       18. The oil supply device according to  claim 17 , wherein the third oil supply passage portion is formed between the first oil supply passage and a pressure receiving surface of the variable valve, which is pressed in a direction to open the second oil supply passage portion. 
     
     
       19. The oil supply device according to  claim 1 , wherein the oil supply adjusting valve is provided at the second oil supply passage. 
     
     
       20. An oil supply device for a vehicle, comprising:
 a hydraulic actuator provided at an internal combustion engine and being operated by a hydraulic pressure; 
 an engine lubricating system lubricating the internal combustion engine; 
 an oil pump supplying oil to the hydraulic actuator and the engine lubricating system; and 
 an oil supply adjusting valve arranged between the hydraulic actuator and the oil pump and between the engine lubricating system and the oil pump and distributing the oil, which is discharged from the oil pump, to the hydraulic actuator and the engine lubricating system; 
 wherein the oil supply adjusting valve consistently distributes the oil to the hydraulic actuator and the engine lubricating system.